A new report on intern doctors and specialist trainees has found more than a third of them are working more than 60 hours per week.
The "Your Training Counts" report surveyed young doctors about their experiences in the Irish healthcare system for 2017.
33.5% of those surveyed reported working 60hrs or more in a typical week.
The report also found that reports of bullying have increased since the first "Your Training Counts" report in 2014.
The survey said 41% had been bullied or harassed at work and more than half of respondents (56.2%) said they had witnessed it happening to a colleague.
Less than 70% of interns or trainees who said they had been bullied or harassed did not report the matter to a senior figure.
Of the 31.1% who did report an incident, less than 10% said action was taken.
Dr Rita Doyle said that the Medical Council has a "zero tolerance approach to bullying" and that they need to ensure that interns receive the best experience possible so they continue on their chosen path with confidence"
Speaking at the report launch, Dr Doyle said she encourages anyone who feels they have been bullied to report it and to contact the Medical Council if they feel their reports have not been given proper consideration.
Almost half of those who worked long hours were had been directly or indirectly involved in an "adverse event" in the previous 12 months, while those who reported being bullied were also more likely to be involved in an "adverse event" than those who were not bullied.
There has also been an increase in the numbers of trainee doctors who want to stay working in Ireland.
Long working hours in Ireland was the reason given by two thirds of those who were thinking about practising medicine abroad.
Australia, UK and Canada were the most popular destinations cited by those thinking of working abroad.
The Medical Council maintains the register of doctors who are legally permitted to work in Ireland and sets the standards for education and training in Ireland.
We need your consent to load this rte-player contentWe use rte-player to manage extra content that can set cookies on your device and collect data about your activity. Please review their details and accept them to load the content.Manage Preferences
One newly qualified doctor, who is almost finished her intern year, told RTÉ News that she works a "minimum" of 60 hours a week.
The 24-year-old said that before qualifying, she did not realise quite how long the hours would be.
"It works out at at least 12 hours per day. You might start at 6.30 or 7 in the morning and go for 12 hours most days."
She said she has had to give up hobbies and socialising to do this job.
"I've stopped going to the gym. I like to cook and I don't even really do that at the moment."
While she said that her superiors do recognise that intern working hours are too long, the intern said "there's no way you could just decide to go home".
"There's no one to replace you in your role, so if you don't do your work tonight, it will be carried into tomorrow and delay services."
The young doctor told RTÉ News that doctors in more senior positions are also working very long hours.
"It's pretty daunting. It can turn you off different specialities, and could dissuade people from doing things they might otherwise like to do."
